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        <FormAndLineReferenceDesc>FORM 990 - ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>TO PROMOTE AND ENCOURAGE HISTORICAL RESEARCH IN CONNECTION WITH NORTHUMBERLAND COUNTY, PA. TO PROMOTE A WIDER APPRECIATION OF AMERICAN HERITAGE WITH PARTICULAR EMPHASIS OF THE COLLECTION, ADVANCEMENT, AND DISSEMINATION OF KNOWLEDGE OF THE HISTORY OF NORTHUMBERLAND COUNTY, PA. TO COLLECT AND PRESERVE PRINTED RECORDS, BOOKS, GENEALOGIES, NEWSPAPERS, MAPS, PORTRAITS, ENGRAVINGS, AND IN PARTICULAR THE DOCUMENTARY HERITAGE, INCLUDING MANUSCRIPTS, LETTERS, JOURNALS, CHURCH AND CEMETERY RECORDS AND OTHER MATERIALS RELATING TO HISTORY. TO PREPARE AND READ BEFORE THE SOCIETY PAPERS ON THE HISTORY, BIOGRAPHY, GENEALOGY AND CUSTOMS OF THE PEOPLE OF THS COUNTY. TO PUBLISH PAPERS AND DOCUMENTS FROM TIME TO TIME AND TO MAKE THEM PERMANENT RECORDS. TO ESTABLISH A LIBRARY AND MUSEUM WHEREIN TO PRESERVE ALL BOOKS, PAPERS, RELICS AND OTHER ARTICLES RELATING TO HISTORY. TO PROMOTE SOCIAL INTERCOURSE AMONG THE MEMBERS. TO DEVELOP, PRESERVE AND INTERPRET THE FORT AUGUSTA SITE TO ITS FULL POTENTIAL AS A HISTORICAL SITE OF MAJOR SIGNIFICANCE IN PA.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 2, PART III, LINE 4D</FormAndLineReferenceDesc>
        <ExplanationTxt>SEE SCHEDULE O.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>COPY OF FORM 990 SHARED WITH ALL BOARD MEMBERS BEFORE FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PAGE 6, PART VI, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>AVAILABLE AT OFFICE OF HISTORICAL SOCIETY.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>RESALE ITEMS 1,459 2,919 1,460</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9</FormAndLineReferenceDesc>
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